Answer:
Option (4).
Explanation:
Human genome may be defined as the complete DNA sequence of the organism. Human genome project is the funded project that aim is to determine the human genome.
Human genome researchers has identified that human's DNA is almost similar with each other except some variable regions. The other human can be considered as the genetically identical twin of the other humans as they DNA sequences are most similar and identical with each other.
Thus, the correct answer is option (4).